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Indian PM Narendra Modi greeted President Obama on the tarmac Sunday with a warm hug

The "bear hug" was just one memorable broment from the first day of Obama's visit

New Delhi (CNN)U.S. President Barack Obama and Indian Prime Minister Narendra Modi are pals, if you haven't heard.

The pair have "chemistry," according to the White House and Indian officials. They've shared impromptu strolls on the National Mall and, on Sunday, a long meander through a New Delhi rose garden.

Indian weavers are hurriedly piecing together saris as gifts for the first lady. The normally congested Indian capital has been rid of its stray monkeys -- at least in the places Obama might visit. And local television networks are running entire pieces speculating the two leaders might take a selfie.

Here's a highlight reel of social media's favorite Obama and Modi broments so far:

The hug

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In case anyone doubted the deep bond between Obama and Modi (and how could they?), Air Force One's arrival on Sunday put any questions to rest.

Photos:President Obama visits India

Photos:President Obama visits India

U.S. President Barack Obama and first lady Michelle Obama fold their hands together in a traditional Indian greeting gesture as they prepare to board Air Force One to depart New Delhi on Tuesday, January 27.

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Obama greets guests after speaking on U.S.-India relations during a town hall event at Siri Fort Auditorium in New Delhi on January 27.

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Guests use cell phones to record Obama as he speaks at the town hall event on January 27.

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Obama speaks at Siri Fort Auditorium in New Delhi on January 27.

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The Obamas meet with Kailash Satyarthi, third from right, and his family in New Delhi on January 27. Satyarthi, a children's rights advocate, shared the 2014 Nobel Peace Prize with Malala Yousafzai.

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Indian Prime Minister Narendra Modi, left, and Obama participate in the India-U.S. Business Summit in New Delhi on Monday, January 26.

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Obama waves to the crowd as he walks with Modi, left, and first lady Michelle Obama after the annual Republic Day parade in New Delhi on January 26.

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Modi talks with Obama as they watch jets fly overhead during the Republic Day parade on January 26.

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Indian soldiers march in formation down Rajpath Boulevard during the Republic Day parade on January 26.

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Obama waves as he arrives at the Republic Day parade on January 26.

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Obama greets actor Kal Penn at a receiving line before a state dinner at Rashtrapati Bhawan, the presidential palace in New Delhi, on Sunday, January 25.

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U.S. Rep. Nancy Pelosi, the House minority leader, arrives for the state dinner in New Delhi on January 25.

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Obama and Modi sit down for tea after a stroll in the gardens of Hyderabad House on January 25.

Obama offers a floral tribute at the site where Indian independence icon Mahatma Gandhi was cremated in New Delhi.

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Modi hugs Obama after Obama's arrival in New Delhi.

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Obama shakes hands with Modi as first lady Michelle Obama stands beside them upon arrival at the Palam Air Force Station in New Delhi.

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Breaking with established protocol -- and surprising television commentators on the dozen or so local news broadcasters -- Modi showed up on the tarmac to be the first to greet Obama in India.

And it wasn't just with a handshake. Modi pulled the travel-weary commander in chief for the "bear hug" seen around the world -- though like most unplanned hugs in front of a billion-viewer television audience, it was a little awkward. The two leaders later followed it up with another warm embrace after a joint press conference, stoking rumors of a "bromance."

The stroll

When Modi visited Obama at the White House in September, the visit ended with Obama blowing up his set-in-stone schedule and taking the visiting Prime Minister for a stroll at the Martin Luther King memorial on the National Mall.

The strolling continued in New Delhi.

Obama and Modi, punctuating their bilateral talks, sauntered side by side through the formal gardens at Hyderabad House, a stately 1920s home that now acts as a ceremonial venue. Cameras caught them murmuring away to each other, but reporters could not hear what they said.

After the stroll they sat down for a cup of tea. Modi's camp wasted no time posting a Facebook album of highlights.

The toast

When Obama and Modi last sat down for dinner, at the White House in September, only one of them actually ate. Modi was midway through a religious fast that allowed only warm water.

This time around, solid foods were consumed by all. A readout of lunch showed vegetarian and nonvegetarian menus, each with more than a dozen dishes.

The jokes

The leaders poked fun at each other throughout the day. During a press conference, Obama remarked that Modi was greeted like a "Bollywood star" when he visited New York's Madison Square Garden last year.

Obama also said they compared how much sleep they're getting, prompting polite laughter from the press corps.

"And it turns out that Modi is getting even less sleep than me. But of course that's because he's still new. After you've been doing this for about six years, maybe he'll be able to get an extra hour."

Not everyone was impressed with his answer, however.

So we know Modi gets less sleep than Barack but have no clarity on the nuclear deal.